Porcupine Ray

The remarkable Porcupine Ray is an extremely rare species of ray. It also remains the only known member of its genus.

They are truly impressive ocean creatures and are unique in several ways. They are:

very sedate creatures

tolerant of approaches by divers

unfortunately not yet protected by law

Their numbers seem to be diminishing rapidly which is sad, but not surprising. In some portions of their range, they have in fact disappeared entirely and hence currently list as Vulnerable by the IUCN.

Source: http://bit.ly/2aZ9omX Photographer: Blair Carter

Porcupine Ray Physical Description

The animal attains an average body size of 3.9 ft (1.2 m) across but an exceptional individual will measure as much as 4.9 ft (1.5 m).

The coloring may be either various shades of gray or brown. The eyes stay small and placed close together. The area surrounding the mouth is heavily covered by papillae.

Most of all, they are famous for the thorny projections covering their bodies which are actually a unique defense mechanism.

There is another feature distinguishing them from other rays: they are the only member of its family that does not possess a venomous spine.

Source: http://bit.ly/2b0wWFe Photo Credit: Unknown

Porcupine Ray Habitat and Ecology

The Porcupine Ray is present across a rather wide territory range but the population density is sparse. Their range includes the Indian and Pacific Oceans as well as portions of the Mediterranean Sea and the Atlantic Ocean.

These rays are predominantly bottom-dwellers and prefer to inhabit shallow water areas of coral, sandy bottom, or seagrass. Individuals rarely live at depths exceeding 100 ft (30 m).

The diet primarily consists of bony fishes as well as small invertebrates which are dug out from the ocean floor.

Habitat degradation primarily due to coastal development is the leading threat to this species.